Gases under pressure This class includes compressed gases, liquefied gases, dissolved gases and refrigerated liquefied gases. Compressed gases, liquefied gases and dissolved gases are hazardous because of the high pressure inside the cylinder or container.
The cylinder or container may explode if heated. Refrigerated liquefied gases are very cold and can cause severe cold cryogenic burns or injury. Self-reactive substances and mixtures These products may react on their own to cause a fire or explosion, or may cause a fire or explosion if heated. Pyrophoric liquids Pyrophoric solids Pyrophoric gases These products can catch fire very quickly spontaneously if exposed to air. Self-heating substances and mixtures These products may catch fire if exposed to air.
These products differ from pyrophoric liquids or solids in that they will ignite only after a longer period of time or when in large amounts.
Substances and mixtures which, in contact with water, emit flammable gases As the class name suggests, these products react with water to release flammable gases. In some cases, the flammable gases may ignite very quickly spontaneously. Organic peroxides These products may cause a fire or explosion if heated. Corrosive to metals These products may be corrosive chemically damage or destroy to metals. Combustible dust This class is used to warn of products that are finely divided solid particles.
If dispersed in air, the particles may catch fire or explode if ignited. Simple asphyxiants These products are gases that may displace oxygen in air and cause rapid suffocation. Physical hazards not otherwise classified This class is meant to cover any physical hazards that are not covered in any other physical hazard class.
These hazards must have the characteristic of occurring by chemical reaction and result in the serious injury or death of a person at the time the reaction occurs.
If a product is classified in this class, the hazard statement on the label and SDS will describe the nature of the hazard. Hazard Class General Description Acute toxicity These products are fatal, toxic or harmful if inhaled, following skin contact, or if swallowed. Acute toxicity refers to effects occurring following skin contact or ingestion exposure to a single dose, or multiple doses given within 24 hours, or an inhalation exposure of 4 hours. Acute toxicity could result from exposure to the product itself, or to a product that, upon contact with water, releases a gaseous substance that is able to cause acute toxicity.
Respiratory or skin sensitization A respiratory sensitizer is a product that may cause allergy or asthma symptoms or breathing difficulties if inhaled.
Skin sensitizer is a product that may cause an allergic skin reaction. Germ cell mutagenicity This hazard class includes products that may cause or are suspected of causing genetic defects permanent changes mutations to body cells that can be passed on to future generations. Carcinogenicity This hazard class includes products that may cause or are suspected of causing cancer.
Reproductive toxicity This hazard class includes products that may damage or are suspected of damaging fertility or the unborn child baby. Note: There is an additional category which includes products that may cause harm to breast-fed children. Specific target organ toxicity — single exposure This hazard class covers products that cause or may cause damage to organs e. This class also includes a category for products that cause respiratory irritation or drowsiness or dizziness.
Specific target organ toxicity — repeated exposure This hazard class covers products that cause or may cause damage to organs e. Aspiration hazard Aspiration is defined as the entry of a liquid or solid into the trachea or lower respiratory system directly though the oral or nasal cavity, or indirectly by vomiting.
In other words, aspiration occurs when instead of something going from your mouth or nose to your stomach other than air , it enters the lungs. Serious health effects can occur such as chemical pneumonia, injury to the lungs, and death. Hazard group — While not given a formal definition, GHS divides hazards into three major groups — health , physical and environmental. Class — Class is the term used to describe the different types of hazards. For example, Gases under Pressure is an example of a class in the physical hazards group.
Such hazards are categorized into three classes: biological, chemical and physical. Biological hazards include harmful bacteria , viruses or parasites e. Chemical hazards include compounds that can cause illness or injury due to immediate or long-term exposure.
Flammable Gases. Oxidizing Gases. Gases Under Pressure. Flammable Liquids. Flammable Solids. Self-Reactive Substances. Here's a look at the nine pictograms. Health Hazard. Reproductive Toxicity. Respiratory Sensitizer. Target Organ Toxicity. Gas Cylinder. Eye Damage. Corrosive to Metals.
Flame Over Circle. Non-Mandatory Aquatic Toxicity. Types of workplace hazards include chemical , ergonomic, physical, psychosocial and general workplace. Luckily, there are ways to mitigate the risks from these hazards such as through planning, training and monitoring. These three classes cover oxidizers, which may cause or intensify a fire or cause a fire or explosion. The main components of WHMIS are hazard identification and product classification, labelling, safety data sheets, and worker education and training.
Such hazards are categorized into three classes: biological, chemical and physical. Biological hazards include harmful bacteria , viruses or parasites e.
Chemical hazards include compounds that can cause illness or injury due to immediate or long-term exposure. Use of eight of the nine are mandatory in the U. Here's a look at the nine pictograms. Health Hazard. Reproductive Toxicity. Respiratory Sensitizer. Target Organ Toxicity. Gas Cylinder. Gases Under Pressure. Eye Damage. Corrosive to Metals. Flame Over Circle. Non-Mandatory Aquatic Toxicity. Types of workplace hazards include chemical , ergonomic, physical, psychosocial and general workplace.
Luckily, there are ways to mitigate the risks from these hazards such as through planning, training and monitoring. Flammable Gases. Oxidizing Gases. Flammable Liquids. Flammable Solids. Self-Reactive Substances. Class C: Oxidizing Materials. Class E: Corrosive. Class F: Dangerously Reactive.
0コメント